Audio noise remover

This free audio noise remover cleans background hiss, hum, and room noise from a recording. It runs entirely in your browser using a neural filter, so nothing is uploaded and your file never leaves your device. Drop an audio or video file, compare the original with the cleaned version, and download the result. Made for creators, podcasters, and anyone recording voice.

In your browser
Drop an audio or video file
Your file is cleaned in your browser and never uploaded. First run downloads the engine once.
Choose file
Runs in your browser. Nothing is uploaded. This is a free tool from Vocast.

How it works

1
Add your file

Drop an audio or video file onto the panel, or choose one. It stays on your device.

2
Clean it

The in-browser engine removes background noise while preserving your speech.

3
Compare

Toggle between original and cleaned to hear the difference before you commit.

4
Download

Save the cleaned audio. Nothing was uploaded at any point.

Frequently asked

No. The noise removal runs entirely in your browser on your machine. Your file is never uploaded, and nothing is sent to a server.

Common audio and video files (for example wav, mp3, m4a, mov, mp4). For video, the audio is cleaned and the video is kept as is.

The filter is tuned to preserve speech, including word endings and breaths, rather than aggressively gating everything. You can compare original and cleaned before you download.

Yes. It is a free tool from Vocast, with no signup and no limits. The first run downloads the in-browser engine once.

This tool cleans an existing recording. Vocast, the paid Mac app, clones your voice and narrates any script in it, fully local, for $49 one time.

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See dead air highlighted, tune the threshold, and tighten a recording in one pass.
Loudness
Match YouTube, podcast or broadcast targets, with measured loudness before and after.
Converter
Convert between mp3, wav, m4a, ogg and flac, without uploading anything.

Clean audio is step one

This free tool cleans a recording. To narrate any script in a voice cloned from your own, fully local on your Mac, get Vocast.

Get Vocast for $49See features